Pinkerton agents Jane Turner and Philip Beaumont have just finished another difficult assignment abroad now the office is sending them to Germany. Their job: to find the assassin who almost succeeded in killing Adolf Hitler when he was in Berlin. Their first surprise is a pleasant one---the Nazi big shot assigned to be their guide, Ernst (Putzi) Hanfstaengl, is a huge, jovial man who amazes his guests immediately his English is almost without any accent! Hanfstaengl has learned American ways during his student days at Harvard. He is a talented pianist and as friendly as a puppy. Jane and Phil have no reason to think his fellow Nazis are not just as personable. This isn't going to be so bad. Everything starts to go downhill after that, however, although a handsome Nazi almost turns Jane's head with his attentions. Their job becomes a questionable one as the agents see more and more of the new party's dreadful face. A woman who gives them some information is found murdered. There are other deaths, all clearly connected to the Nazi Party. By the time Jane and Phil meet Hitler, they are not only horrified and puzzled about why the Pinkerton agency accepted the job, they are very aware that they are in danger themselves.